These are one of the designs that Reliable had on their sample chips. This set has four edge spots (brass metal). There are other samples that show different numbers of edge spots and different designs on the centers of the chips.

If you collect manufacturer sample chips, here is a set of 10 colors of the brass core chips that Reliable made. These are the heavy brass chips, not the later bi-metal version that was much lighter (and less expensive).

Yours for $85, delivered in USA.